Gun trigger lock

Abstract

A trigger locking safety device is disclosed having two side blocks, one of the side blocks having a locking pin affixed thereto. The locking pin is inserted into a hole in the other side block and the pin is held therein by a latch structure affixed to the end of a key lock tumbler rotatably located in that side block. Spacers inserted onto the pin take up the space between the side blocks and mate appropriately with a gun trigger guard and trigger to block the trigger from movement. Different spacers can be provided to conform with different trigger guard and trigger arrangements, allowing one side block and locking pin arrangement to be useable with a variety of gun types.

What is claimed is:  
     
       1. A gun trigger blocking apparatus for mounting on the trigger guard of a gun for inhibiting access to the trigger, comprising: 
       a first body member adapted to be mounted on one side of a trigger guard and having a locking latch pin extending therefrom, the latch pin defining a longitudinal axis and having at least one lateral groove at a right angle to the longitudinal axis on the distal end thereof;  
       a second body member adapted to be mounted on the other side of the trigger guard having a hole for receiving the latch pin when the body members are mounted on opposite sides of the trigger guard;  
       a cylinder lock rotatably mounted in the second body member for rotation through about a ninety degree angle between a locked to an unlocked position, the cylinder lock having only a single protruding post for axially rotating with the cylinder lock tumbler, the protruding post being arranged to extend within the groove on the latch pin in the locked position to prevent the body members from being separated and to be free of the groove in the unlocked position so that the latch pin may be removed from or inserted into the hole in the second body member.  
     
     
       2. The invention of  claim 1  wherein the groove is semi-cylindrical and the protruding post is cylindrical. 
     
     
       3. The invention of  claim 2  wherein said at least one groove comprises two grooves. 
     
     
       4. The invention of  claim 2  wherein the cylinder lock extends at a right angle to the latch pin. 
     
     
       5. The invention of  claim 1  wherein the latch pin includes a slot in the distal end thereof and the groove extends on one side of the slot and wherein the post is arranged to pass through the slot in the unlocked position and to extend into the groove when the cylinder lock is rotated to the locked position. 
     
     
       6. The invention of  claim 5  wherein the post is in the form of a T-shaped member with two outwardly extending latch wings, the latch wings being arranged to pass through the slot in the latch pin when the cylinder lock is in the unlocked position and to extend into the groove when the body members are mounted on a trigger guard with the cylinder lock in the lock position. 
     
     
       7. The invention of  claim 1  wherein the at least one spacer member has a protruding block-shaped nub extending behind the trigger sized and shaped to inhibit rearward movement of the trigger. 
     
     
       8. In invention of  claim 7  wherein the at least one spacer member has two opposed block-shaped numbs for grasping the trigger guard therebetween. 
     
     
       9. The invention of  claim 1  further including at least one resilient spacer member mounted on an inner surface of one of the side members for substantially taking up the space between the inner surface of the side members and the trigger guard or trigger when the side members are locked together.